CN215415555U - Network equipment for stabilizing power supply impedance - Google Patents
Network equipment for stabilizing power supply impedance Download PDFInfo
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- CN215415555U CN215415555U CN202121013800.9U CN202121013800U CN215415555U CN 215415555 U CN215415555 U CN 215415555U CN 202121013800 U CN202121013800 U CN 202121013800U CN 215415555 U CN215415555 U CN 215415555U
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Abstract
The application discloses network equipment is stabilized to power supply impedance constitutes first filtering module with first inductance through first electric capacity ground connection, and second inductance passes through third electric capacity ground connection, constitutes second filtering module, carries out high frequency filtering to external power source through first filtering module and second filtering module to carry out high frequency coupling through second electric capacity, fourth electric capacity and external power source, and set up the sense terminal respectively at second electric capacity, fourth electric capacity one end. In practical application, one end of the first inductor and one end of the second inductor are used as power input ends and connected with an external power supply, the detection ends are connected with external detection equipment, and after electric energy of the external power supply is filtered and coupled in a high-frequency mode, stable impedance is provided for the detection equipment, so that the external detection equipment can accurately detect power supply information to be detected.
Description
Technical Field
The application relates to the field of circuit detection, in particular to a network device for stabilizing power supply impedance.
Background
When electrical equipment is used, conduction measurement is often carried out on the equipment, the interference of the equipment is generally measured by a voltage measurement method, a uniform measurement condition is needed in order to accurately measure the interference sent by the equipment, and in the prior art, the problems that the measurement condition is not uniform and accurate detection cannot be realized exist when the interference of the measurement equipment exists.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a network equipment for stabilizing power supply impedance, which is used for solving the problems that in the prior art, when the interference of measuring equipment is caused, the measuring conditions are not uniform, and accurate detection cannot be realized.
The embodiment of the application provides a network equipment is stabilized to power supply impedance, includes: the first inductor, the second inductor, the first capacitor, the second capacitor, the third capacitor and the fourth capacitor;
the first end of the first inductor is connected with the first end of the first capacitor and is grounded through the first capacitor to form a first filtering module for filtering high-frequency harmonic waves of an external power supply;
the first end of the second inductor is connected with the first end of the third capacitor and is grounded through the third capacitor to form a second filtering module for filtering high-frequency harmonic waves of an external power supply;
the first end of the second capacitor is connected with the second end of the first inductor, the second end of the second capacitor is grounded, and the second end of the second capacitor is used for performing high-frequency coupling with an external power supply;
the first end of the fourth capacitor is connected with the second end of the second inductor, the second end of the fourth capacitor is grounded, and the second end of the fourth capacitor is used for performing high-frequency coupling with an external power supply;
the first end of the first inductor is a live wire contact of the power input interface and is used for connecting a live wire of an external power supply to obtain electric energy; the first end of the second inductor is a zero line contact of the power input interface and is used for connecting an external power zero line to obtain electric energy; the second end of the second capacitor is a fire wire BNC detection end and is used for connecting a fire wire of external detection equipment; and the second end of the fourth capacitor is a zero line BNC detection end and is used for being connected with a zero line of external detection equipment.
Optionally, the method further includes: the circuit comprises a first resistor, a second resistor, a third resistor and a fourth resistor;
the first capacitor is grounded through the first resistor; the second capacitor is grounded through the second resistor; the third capacitor is grounded through the third resistor; the fourth capacitor is grounded through the fourth resistor;
the first resistor, the second resistor, the third resistor and the fourth resistor are used for consuming electric energy and adjusting the impedance of the power supply impedance network equipment.
Optionally, the third capacitor and the fourth capacitor each include a high voltage resistant capacitor.
Optionally, the operating frequency range of the power supply impedance stabilization network device includes 9kHz to 30 MHz.
Optionally, the material of the first inductor and the second inductor includes oxygen-free copper.
Optionally, the number of turns of the first inductor and the second inductor each includes 26 turns.
Optionally, the first inductor is respectively connected in parallel with a resistor of 470 ohms between the fourth turn and the eighth turn, between the twelfth turn and the sixteenth turn, and between the twentieth turn and the twenty-fourth turn, and is used for adjusting self-resonance generated by the first inductor;
and the second inductor is respectively connected with 470 ohm resistors in parallel between the fourth turn and the eighth turn, between the twelfth turn and the sixteenth turn and between the twentieth turn and the twenty-fourth turn, and is used for adjusting self-resonance generated by the second inductor.
Optionally, the device further comprises a shell;
the shell is provided with a power interface, a detection end interface and a ground end interface;
the power supply interface is connected with the power supply input port and is used for connecting an external power supply;
the detection end is connected with the BNC detection end and is used for connecting external detection equipment;
the ground terminal interface is used for grounding or grounding wires.
Optionally, the power interface includes a 10A power interface and a 16A power interface.
Optionally, the second end of the first inductor is a live wire contact of the power output interface, and is used for being connected with a live wire of an external electric device to output electric energy; and the second end of the second inductor is a zero line contact of the power output interface and is used for being connected with a zero line of external electric equipment to output electric energy.
The power supply impedance stabilization network equipment provided by the embodiment of the application is characterized in that a first inductor is grounded through a first capacitor to form a first filtering module, a second inductor is grounded through a third capacitor to form a second filtering module, an external power supply is filtered through the first filtering module and the second filtering module, high-frequency coupling is carried out on the external power supply through the second capacitor and a fourth capacitor, and a detection end is arranged at one end of the second capacitor and one end of the fourth capacitor respectively. In practical application, one end of the first inductor and one end of the second inductor are used as power input ends to be connected with an external power supply, the detection ends are connected with external detection equipment, and after electric energy of the external power supply is filtered and coupled in a high-frequency mode, stable impedance is provided for the detection equipment, so that the external detection equipment can accurately detect power supply information.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic circuit diagram of a power supply impedance stabilization network device according to an embodiment of the present application;
fig. 2 is an external view of a power impedance stabilization network device according to an embodiment of the present application;
fig. 3 is a schematic diagram of a part of a circuit in a power supply impedance stabilization network device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail below. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without making any creative effort, shall fall within the protection scope of the present application.
In order to solve the technical problem, the application provides a power supply impedance stabilization network device, which is used for solving the problem of inaccurate measurement caused by no environment with stable impedance when conducting measurement is performed on a power supply device in the prior art.
Fig. 1 is a schematic circuit diagram of a power supply impedance stabilization network device provided in an embodiment of the present application in fig. 1; as shown in fig. 1, the present application provides a power impedance stabilization network device comprising: a first inductor L1, a second inductor L2, a first capacitor C1, a second capacitor C2, a third capacitor C3 and a fourth capacitor C4, wherein specific parameters of the device are labeled in the figure;
specifically, a first end of the first inductor L1 is connected to a first end of the first capacitor C1, and is grounded through the first capacitor C1 to form a first filtering module; the first end of the second inductor L2 is connected to the first end of the third capacitor C3, and is grounded through the third capacitor C3, thereby forming a second filter module. The first filtering module and the second filtering module are used for filtering high-frequency harmonic waves of the external power supply. A first end of the second capacitor C2 is connected to the second end of the first inductor L1, and a second end of the second capacitor C2 is grounded; the first end of the fourth capacitor C4 is connected to the second end of the second inductor L2, the second end of the fourth capacitor C4 is grounded, and the third capacitor C3 and the fourth capacitor C4 are both used for high frequency coupling with an external power source.
In practical application, the first end of the first inductor L1 is a live wire contact of the power input interface, and is used for connecting a live wire of an external power supply to obtain electric energy; the first end of the second inductor L2 is a zero line contact of the power input interface, and is used for connecting a zero line of an external power supply to obtain electric energy. The second end of the second capacitor C2 is a live wire BNC detection end and is used for connecting a live wire of external detection equipment; and the second end of the fourth capacitor C4 is a zero line BNC detection end and is used for being connected with a zero line of external equipment to be tested.
In a specific using process, the Lin end and the Nin end in the figure are connected with an external power supply, namely the external power supply to be detected, electric energy is obtained from the external power supply to be detected, after the electric energy is filtered and coupled with high frequency through an inductor and a capacitor, the electric energy is connected with external detection equipment through two detection ends in figure 1, stable impedance is provided for the detection equipment, and the external detection equipment can perform accurate conduction measurement on the external power supply to be detected.
In addition, in the power impedance stabilization network device provided by the application, the second end of the first inductor L1 may also be used as a live wire contact of a power output interface, and is used for being connected with a live wire of an external electric device to output electric energy; and the second end of the second inductor L2 is used as a zero line contact of the power output interface and is connected with a zero line of external electric equipment to output electric energy. As shown in fig. 1, the external power consumption device is connected through the Lout terminal, the ground terminal, and the Nout terminal, and the electric energy in the power source to be measured is transmitted to the external power consumption device after being processed.
In practical applications, resistors, such as the first resistor R1, the second resistor R2, the third resistor R3 and the fourth resistor R4 in fig. 1, may be further disposed in the circuit for power and safety reasons.
Specifically, the first capacitor C1 is grounded through the first resistor R1; the second capacitor C2 is grounded through a second resistor R2; the third capacitor C3 is grounded through a third resistor C3; the fourth capacitor C4 is grounded through a fourth resistor R4; through the setting of resistance, can further adjust the impedance in the network equipment on the one hand, consume partly electric energy, adjust output parameter, on the other hand can protect the circuit, makes the circuit safe and reliable more.
In order to stabilize the circuit in practical applications, in fig. 1, capacitors having high withstand voltage are used as the second capacitor C2 and the fourth capacitor C4, which are capacitors for realizing high-frequency coupling, so that the circuit is prevented from being broken down by a high-frequency voltage, and the circuit stability is improved.
In addition, it should be noted that the power supply impedance stabilization network device provided in the embodiment of the present application has an operating frequency range of 9kHz to 30MHz, and can provide a stable line impedance to the device to be tested in the radio frequency range, so as to provide a stable line output impedance for the device to be tested.
Fig. 2 is an external view of a power impedance stabilization network device according to an embodiment of the present application; as shown in fig. 2, the power supply impedance stabilization network device provided in the embodiment of the present application further includes a housing and an interface disposed on the housing, as shown in fig. 2:
the shell is provided with a power interface, namely two interfaces marked with 10A and 16A in figure 2, a detection end interface, namely an interface marked with a detection end in figure 2, and a ground end interface marked with a ground in figure 2;
the power source interface comprises two power source interfaces, one is a 10A power source interface, one is a 16A power source interface, in practical application, power source equipment often includes multiple current standards, in the power impedance stabilization network equipment that this application embodiment provided, to current value commonly used, provide two kinds of power source interfaces, can be according to the difference of power parameter, select suitable power source interface to connect the use, when treating the power that detects is the 10A power, through 10A power source interface connection this equipment, when treating the power that detects is the 16A power, through 16A power source interface connection this equipment. Through setting up the power source interface of two kinds of types, increase equipment application range, satisfy the conduction measurement demand of various power of daily life and military use.
The detection end interface comprises an N detection end, namely a zero line detection end, and an L detection end, namely a live line detection end, and in practical application, the power impedance stabilization network device can provide stable line impedance for conduction testing through two detection end interface direct connection external detection devices, so that the detection is convenient and practical.
In addition, the shell is also provided with a ground end interface which is connected with the ground wire in the figure 1.
Fig. 3 is a schematic diagram of a part of a circuit in a power impedance stabilization network device according to an embodiment of the present application, as shown in fig. 3:
in the network equipment is stabilized to power supply impedance that this application embodiment provided, on first inductance L1 to and on second inductance L2, equally divide and be provided with three resistance respectively, be used for adjusting after connecting external power source, the self-resonance that the inductance appears makes circuit power output more accurate.
Specifically, as shown in fig. 3, the first inductor L1 and the second inductor L2 have the same structure as the inductor in fig. 3, and as the inductor in fig. 3, the first inductor L1 has a resistance of 470 ohms connected in parallel between the fourth turn and the eighth turn, between the twelfth turn and the sixteenth turn, and between the twentieth turn and the twenty-fourth turn, respectively, for adjusting the self-resonance generated by the first inductor.
The second inductor L2 has a resistance of 470 ohms connected in parallel between the fourth turn and the eighth turn, between the twelfth turn and the sixteenth turn, and between the twentieth turn and the twenty-fourth turn, respectively, for adjusting the self-resonance generated by the second inductor.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A power supply impedance stabilization network device, comprising: the first inductor, the second inductor, the first capacitor, the second capacitor, the third capacitor and the fourth capacitor;
the first end of the first inductor is connected with the first end of the first capacitor and is grounded through the first capacitor to form a first filtering module for filtering high-frequency harmonic waves of an external power supply;
the first end of the second inductor is connected with the first end of the third capacitor and is grounded through the third capacitor to form a second filtering module for filtering high-frequency harmonic waves of an external power supply;
the first end of the second capacitor is connected with the second end of the first inductor, the second end of the second capacitor is grounded, and the second end of the second capacitor is used for performing high-frequency coupling with an external power supply;
the first end of the fourth capacitor is connected with the second end of the second inductor, the second end of the fourth capacitor is grounded, and the second end of the fourth capacitor is used for performing high-frequency coupling with an external power supply;
the first end of the first inductor is a live wire contact of the power input interface and is used for connecting a live wire of an external power supply to obtain electric energy; the first end of the second inductor is a zero line contact of the power input interface and is used for connecting an external power zero line to obtain electric energy; the second end of the second capacitor is a fire wire BNC detection end and is used for connecting a fire wire of external detection equipment; and the second end of the fourth capacitor is a zero line BNC detection end and is used for being connected with a zero line of external detection equipment.
2. The supply impedance stabilization network device of claim 1, further comprising: the circuit comprises a first resistor, a second resistor, a third resistor and a fourth resistor;
the first capacitor is grounded through the first resistor; the second capacitor is grounded through the second resistor; the third capacitor is grounded through the third resistor; the fourth capacitor is grounded through the fourth resistor;
the first resistor, the second resistor, the third resistor and the fourth resistor are used for consuming electric energy and adjusting the impedance of the power supply impedance network equipment.
3. The supply impedance stabilization network device of claim 2, wherein the third capacitor and the fourth capacitor each comprise a high voltage tolerant capacitor.
4. The power impedance stabilization network device of claim 1, wherein the operating frequency range of the power impedance stabilization network device comprises 9kHz to 30 MHz.
5. The power impedance stabilization network device of claim 1, wherein the material of the first inductor and the second inductor comprises oxygen free copper.
6. The supply impedance stabilization network device of claim 1, wherein the number of turns for the first inductance and the second inductance each comprises 26 turns.
7. The power impedance stabilization network device of claim 1, wherein the first inductor is connected in parallel with a resistance of 470 ohms between a fourth turn and an eighth turn, between a twelfth turn and a sixteenth turn, and between a twentieth turn and a twenty-fourth turn, respectively, for adjusting a self-resonance generated by the first inductor;
and the second inductor is respectively connected with 470 ohm resistors in parallel between the fourth turn and the eighth turn, between the twelfth turn and the sixteenth turn and between the twentieth turn and the twenty-fourth turn, and is used for adjusting self-resonance generated by the second inductor.
8. The power impedance stabilization network device of claim 1, further comprising a housing;
the shell is provided with a power interface, a detection end interface and a ground end interface;
the power supply interface is connected with the power supply input port and is used for connecting an external power supply;
the detection end is connected with the BNC detection end and is used for connecting external detection equipment;
the ground terminal interface is used for grounding or grounding wires.
9. The supply impedance stabilization network device of claim 8, wherein the power interface comprises a 10A power interface and a 16A power interface.
10. The power impedance stabilization network device of claim 1, wherein the second end of the first inductor is a power line contact of a power output interface, and is configured to be connected to a power line of an external consumer to output power; and the second end of the second inductor is a zero line contact of the power output interface and is used for being connected with a zero line of external electric equipment to output electric energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121013800.9U CN215415555U (en) | 2021-05-12 | 2021-05-12 | Network equipment for stabilizing power supply impedance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121013800.9U CN215415555U (en) | 2021-05-12 | 2021-05-12 | Network equipment for stabilizing power supply impedance |
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| Publication Number | Publication Date |
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| CN215415555U true CN215415555U (en) | 2022-01-04 |
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| CN202121013800.9U Active CN215415555U (en) | 2021-05-12 | 2021-05-12 | Network equipment for stabilizing power supply impedance |
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- 2021-05-12 CN CN202121013800.9U patent/CN215415555U/en active Active
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